Bro NS,
For me better to have MD,a marker to be followed, a theory like yours, because I consider YT is like what you approach in solving problem in Math especially Trigonometry.1st: read the given problem 2nd:Identify the given data 3rd:Identify the "unknown or problem to be solve" 4th:sketch or draw the object or area base in the given data 5th:show the solution of the problem 6th:Finally,the final correct answer.Just my opinion.